Ice-cream freezer.



E'. TYSUN.

IUE CREAM PRBBZER.

APPLIGATON FILED JUNE 13, 1907. 903,030. Patented N0v.3,1908.

ject being to so when said valve is open.

elements of the mechanism forming `U ttlTED STATES PATENT `FICE.'

FRANK ["YSON, 0F CTON, OHIO.

ICE-CREAM FREEZER.

Specification of Letters Patent. Appaaaqn flied June 1a, 307. serial No.a'fsoa.

Patented Nov. 3, 1908.

my present invention being to permit ready inspection ofthe contents ofthe freezingr vessel at all stages of the freezing operation, anotherobject being to insure fthe delivery of the frozen contents of saidfreezing vessel into a can or other receptacle without loss orinconvenience, and a still further obconnect that element of the machinewhich effects the discharge of the frozen cream with the valve whichgoverns the outlet that such element will be operative to discharge thefrozen cream only These objects` I attain in the manner hereinafter setforth, reference .beingl had to the accompanying drawing, in wlilchv a nr l Figure 1 is a vertical longitudinal section of one end of i rotaryhorizontal ice cream freezer, illustrating my ,present invention;

Fig. 2 is a transversesection of the same, on

theA line (cf-fg Fig. 1, and Figs. 3 and 4 are detached views, on alarger scale, of certain A the subject of my present invention..

Referring in the lirst instance to Fig. 1 of the drawing, 3 representsone of the end frames of the freezing vessel, to which is connected oneend of each of the three metal cylinders l, 5 and- 6 constituting thecasing of the said freezing vessel, 12 representing the central shaft ofthe freezer, which has a head 12, the outer portion of the latterturning in `a bearing carried by the central portion of a head 11. whichis secured to the end frame 3, preferablyy in such manner that it can bereadily detached therefrom.

Secured to the shaft head 12 is a hub provided with armsl 50, whoseouter ends carry pivot pins for a pair of scraper blades 51 of anyldesired character, and also mounted upon and rotating with the shafthead 'l2a is a hub 52, provided with projectinpY armsl 33, which carryblades .similar in t'unction to those of the machine of the formerintent, the opposite ends of these blades eing, as in thefornnrrmachine, intended b v dotted lines in Fig.

to be mounted u on a structure which rotates with the siaft 12. The hub52 is, however, capable of a certain degree of roary movement on theshaft head'12", so that; lwhen in one' of its extreme positions, theblades 24 will be parallel with the axis of the shaft. 12, as shown byfull lines in Fig. 2, and will therefore act only as beaters upon themass of cream contained in the freezing vessel, while, when the hub isadjusted to its other -extreme position, one end of each blade will beadjusted forwardl or backf wardly in respect to its other ent, (seedotted lines, Fig. 2) to such an extent as to cause said blade to occu ya spiral position in the cylinder, and tierefore act as an ejector' forthe frozen cream.y This adjustl ment of the hub 52 is effected ln thefollowing\\manner.

of set screws 54, Whose inner ends pass through segmental slots 55 inthe shaft head 12'1 anc\engage with cam slots 56 formed in the peripheryof a' plug 57, which is free to slide longitudinally in the hollow shaft12 and its hollow head'12, and is connected to a. shaft V59, qiiallydisposed in respect to the shaft head Eind passing through the same and'its bearing, the outer end of .said shaft 59 having mounted upon it ablocl; 60 provided with oppositelfv prcjecting pins 61 which engage theforketf and slotted arm of a lever 62, the fulcruin piri'ti of thislever beine adapted to bearin sin ahracket 61, and the litter beingsecuredy to the curved outlet `nozzle 65 with which the lower portionot' the head 14 is-provided, as shown in Fia'.` 1

Thisoutlet nozzle is provided with a slidiiug` valve 66, and withr thelatter engages a third arm of the lever 62, preferabl by means of aballand-socket joint, whereh on operating said lever 62 movement wil beimparted simultaneously to said valve 66 and to the plug 57 of the shaft59. The cam slots 56 of said plug 57 are so disosed that when the valve66 is closed anc the pluglr 5T is retracted to its full extent, as shownin Fig, 1, the hub 52 will occupy that extreme of its movement whichprovides for the ad- 'ustmentof the blades 24 in liiiewith the axis-ofthe shaft 12,'but when the lever is moved so as to open the valve 66 theplug 5T will he )rojected to the position shown 1. which movement i willetleet a partial turning of the hub 59 and the adjustment of the bladeI24 to their spiral or cjectiiig position indicated hy dot- Secured tosaid hub are a pair i is ` l70, through which the creani 4may be tedlinesy in Fig. Q', with the result that said blades 2l will act asejectors only whenV the valve 66 is o en, closing ofthe valve restoringthe bla esto their normal position ii i :that the contents of the latterc n be plainly ery end of th'e machine.

' process can seen through-the hopper, and t e condition of the cream atall stages of 'the freezing thus be under the direct observa; tion ofthe' attendant standing at 4the delivunderstood` .that

n bein elle charge" of cream fe to the freezing vessel is never likelyto be in such volume -as tol occupy --much more than one-half of thecapacity of it' may j said vessel'the agitation to which this mass ofcream is Asubjected during the freezing operation is not sufficient tocause it to loverflow `theiguarded or hoppered opening in the upperportionof the ead14, although fall into the hopper, consequently a valvefor `the latter is not 'necessar a1- though such valvel may be providedif desired, the valvevbeing open when the condition of is to beobserved.

The dischar is open,

lfrozen 'cream from the freezingl incommunication with the en e nozzledelivers directly downward, an Y that 'of-the ordinary ice cream storageand service can, consequently, when the valve 66 the discharge from thenozzle can pass at yonce into the mouth of the can placed below thenozzle and the delivery of the vessel can' therefore be el'ected withoutsp ashing "and consequently without loss or inconvenience.

I c1aim:l

1. A rotary ice creamfreezer havinV a -head rovided inits lower portionwit a valve discharge-nozzle an in its upper ortion with a uard'ed or hoered opening p g Pt ofthe freez- 'ingchambeig whereby the` contentsofthe latter can beobserved' through the opening 'during the operation ofthe machine.

A rotary ice creare freezer-'lievi a head provided, in its lowerportion, wit' :i

downwardly directed and valyeddiscliarge nozzle, whereby the Vde'li'vtgygt'he'fi'ozen creamfrom the freezing ve ',elf ed without, splashing orlswf freezer havi a 3. A rotary ice cream head provided, initsupperportiomwi a the contents'of the freezing vessel its `mouth isless in area than end 'ofthe freezing chamber, "and, in its lowerportion, with a downwardlydirected and valveddischarge nozzle.

4. A rotary horizontalrice cream 'freezer having a blade thereinadjustable so as to serve as an ejector, a vulved discharge oullet, anda connection between said blade and the valve, whereby coperatiiigmovements can be. imparted to them.

5. A rotary horizontal ice cream freezer rier, a valved' outlet, and anexternal lever, having connection with the outleti valve and bladecarrier, whereby both of the same can be operated by the lever. 6.A'rota lhorizontal ice cream freezer having therein a blade adjustabletolspiral osition to serve' as anlejector, a hubcarrying said blade iconnection with 7. having a blade adjustable to spiral positionl toserve asan ejector, blade, a plug having a cam connection Vwith sa'idhub, a `-valve controlling the outlet from' plug. l

Ajrotaryhorizontal ice cream freezer' valve and -pli'ig .wherebymovement of both of said parts can' be efectedby-said lever. 8. A rotaryhorizontal ice cream freezer having a blade adjustable to spiralposition so as to Serve as an ejector,'a hub carrying' -said blade, 'ashaft having a tubular portion upon which` said hub is mounted, andVaplug guided longitudinally 'in said tubular portion with the hub.

9.` A rotary horizontal-ice creamV freezer so as to serve as an ejector,a hub carrying said blade, a shaft having a tubular portion on whichsaid hub is mounted, aplug guided londitudinally in said" tubularportion vof the sha and having a cam connection with the Y hub, and ashaft connected to said cam plug l 10. The combination, in a rotaryhorizontal ice cream freezer, of a blade adjustable tospiral position soas to serve as an ejector, a h ub" carrying said blade, camconnctionwith Said hub, a sha/ctt '3ro- 'jecting fndm *said plug, a bloclp ensaid s aft havirtgt rojecting'pms, and, a forked and slotted ever forengaging seins-ard the cam plug.

11. The combination, tal 'icecream' freezer, of a blade adjustableL tospiral position so as feed hopper in open communication -with the a hubcarrying said.

`the freezer, and 'a lever connecting said` having a blade ,adjustableto spiral position f in a rotary*horizon-ffv having a'bladether'inadjustable to serve as an ejector, a partially rotatable blade carand aplug havingI a cam' Said hub, whereby movement of partial rotation canbe imparted to the latter bya longitudinal movement of the tion oftheshaft and having a cam connec- '105 and projecting 4beyond the endofthe main 115 a' plug having a 1'20 servingtoim'pa'rt longitudinalmovementto 12 j tofserve 'as an ejector, i ahub Acarrying said blade, ashaft on which' 130 tion with a Valved discharge nozzle und in eatingwith the interior of the freezing Chamber und having an external vguardor hopper into which the contents ot' Said freez` ing chamber canoverflow.

In testimony whereof, I have signed Vmy name to thisl specification, inthe presence of two subscribing Witnesses. A

v FRANK TYSON.

said hub is mounted s0 as to be susceptible of partial rotation, alongitudinally movable plug haring cam connection with said hub andhaving a projecting shaft, a discharge nozzle having a sliding vulve,and a lever having an operating arm and other arms engagingrespectively, the sliding valve and the shaft of the plug. y

l2. A rotary ice cream freezer having, at one end, a head provided inits lower por- 'Witnessesz HAMiLToN D. TURNER,

its upper portion with an opening communi- 1 KATE A. BEADLE.

